How longer? Up to ten years, maybe longer, depending rrn your watch, how powerful it is, exactly what you use it. You shouldn't use a cobalt on the high drain watch, unfortunately.

A period ago mobile handsets used Nickel-Cadmium batteries which in fact had a "memory" so to speak. What this means is that if you make it easier to battery access 50% of charge capacity and can then be charged it it would start to think about that at 50% capacity it was totally unload. Many of us remember how rapidly cell phone batteries appeared to die the actual (Ni-Cad) BATTERY METALS. If you have a Nickel-Cadmium or a Nickel-Metal Hydride battery, ensure you let it run down before charging to give it the correct memory parameters. Lithium Ion batteries have no "memory effect" whatsoever. This means you can charge your phone when battery is at 80% or when it truly is dead without harming it.
Most from the laptops now a day are equipped with Lithium-ion battery pack. Though there are Nickel-cadmium, Nickel metal hydride, etc, after the invention of lithium stocks-ion battery, because of that efficiency the majority of the laptop manufacturers are selling it as well as respective lap tops.
Most of the laptops now a day are equipped with Lithium-ion energy. Though there are Nickel-cadmium, Nickel metal hydride, etc, following the first invention of Lithium-ion battery, because of efficiency a large amount of the laptop manufacturers are available it combined with their respective laptops.
Let us say that this iPod mini battery holds enough capacity play 1 hour. After an hour, it dies out, which charge it again. Itrrrs now full, but instead of an hour, it only plays 59 minutes. Over time and repeated charges, battery simply cannot hold electric powered any lots more. Once that happens, it is time to change the ipod battery.
Ah yes - the Apple power house in this beast is a belter. Repeatedly this thing has been custom ideal for the iPad (rather than some techie trawling from the Apple warehouse looking at the used spare parts). Significantly as touch devices go - the iPad 64gb is hands to the best performance device out there, bar none.